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https://github.com/AsahiLinux/u-boot
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bootstd: Remove special-case code for boot_targets
Rather than implement this as its own case in build_order(), process the boot_targets environment variable in the bootstd_get_bootdev_order() function. This allows build_order() to be simplified. Signed-off-by: Simon Glass <sjg@chromium.org>
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parent
3e96ed44e8
commit
6a6638f093
3 changed files with 32 additions and 31 deletions
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@ -12,7 +12,6 @@
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#include <bootflow.h>
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#include <bootmeth.h>
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#include <bootstd.h>
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#include <env.h>
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#include <fs.h>
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#include <log.h>
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#include <malloc.h>
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@ -504,34 +503,13 @@ static int build_order(struct udevice *bootstd, struct udevice **order,
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const char *overflow_target = NULL;
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const char *const *labels;
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struct udevice *dev;
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const char *targets;
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int i, ret, count;
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bool ok;
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targets = env_get("boot_targets");
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labels = IS_ENABLED(CONFIG_BOOTSTD_FULL) ?
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bootstd_get_bootdev_order(bootstd) : NULL;
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if (targets) {
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char str[BOOT_TARGETS_MAX_LEN];
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char *target;
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if (strlen(targets) >= BOOT_TARGETS_MAX_LEN)
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return log_msg_ret("len", -E2BIG);
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/* make a copy of the string, since strok() will change it */
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strcpy(str, targets);
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for (i = 0, target = strtok(str, " "); target;
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target = strtok(NULL, " ")) {
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ret = bootdev_find_by_label(target, &dev);
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if (!ret) {
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if (i == max_count) {
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overflow_target = target;
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break;
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}
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order[i++] = dev;
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}
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}
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count = i;
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} else if (labels) {
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labels = bootstd_get_bootdev_order(bootstd, &ok);
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if (!ok)
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return log_msg_ret("ord", -ENOMEM);
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if (labels) {
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int upto;
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upto = 0;
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@ -10,6 +10,7 @@
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#include <bootflow.h>
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#include <bootstd.h>
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#include <dm.h>
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#include <env.h>
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#include <log.h>
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#include <malloc.h>
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#include <dm/device-internal.h>
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@ -72,9 +73,23 @@ static int bootstd_remove(struct udevice *dev)
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return 0;
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}
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const char *const *const bootstd_get_bootdev_order(struct udevice *dev)
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const char *const *const bootstd_get_bootdev_order(struct udevice *dev,
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bool *okp)
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{
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struct bootstd_priv *std = dev_get_priv(dev);
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const char *targets = env_get("boot_targets");
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*okp = true;
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log_debug("- targets %s %p\n", targets, std->bootdev_order);
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if (targets && *targets) {
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str_free_list(std->env_order);
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std->env_order = str_to_list(targets);
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if (!std->env_order) {
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*okp = false;
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return NULL;
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}
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return std->env_order;
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}
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return std->bootdev_order;
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}
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@ -22,7 +22,10 @@ struct udevice;
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* @prefixes: NULL-terminated list of prefixes to use for bootflow filenames,
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* e.g. "/", "/boot/"; NULL if none
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* @bootdev_order: Order to use for bootdevs (or NULL if none), with each item
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* being a bootdev label, e.g. "mmc2", "mmc1";
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* being a bootdev label, e.g. "mmc2", "mmc1" (NULL terminated)
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* @env_order: Order as specified by the boot_targets env var (or NULL if none),
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* with each item being a bootdev label, e.g. "mmc2", "mmc1" (NULL
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* terminated)
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* @cur_bootdev: Currently selected bootdev (for commands)
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* @cur_bootflow: Currently selected bootflow (for commands)
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* @glob_head: Head for the global list of all bootflows across all bootdevs
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@ -34,6 +37,7 @@ struct udevice;
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struct bootstd_priv {
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const char **prefixes;
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const char **bootdev_order;
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const char **env_order;
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struct udevice *cur_bootdev;
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struct bootflow *cur_bootflow;
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struct list_head glob_head;
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@ -51,9 +55,13 @@ struct bootstd_priv {
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* The list is alloced by the bootstd driver so should not be freed. That is the
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* reason for all the const stuff in the function signature
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*
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* Return: list of string points, terminated by NULL; or NULL if no boot order
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* @dev: bootstd device
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* @okp: returns true if OK, false if out of memory
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* Return: list of string pointers, terminated by NULL; or NULL if no boot
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* order. Note that this returns NULL in the case of an empty list
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*/
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const char *const *const bootstd_get_bootdev_order(struct udevice *dev);
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const char *const *const bootstd_get_bootdev_order(struct udevice *dev,
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bool *okp);
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/**
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* bootstd_get_prefixes() - Get the filename-prefixes list
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